How to listen to a port with UDP transmitted data

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Hey everyone,

i am currently doing a project which involves collecting sensor data from a mobile phone and do some processing with the collected data on a linux machine.

I searched on the web for possibilities to stream IMU sensor data from an iPhone to my linux pc using WiFi connection, and i came across the app Sensor Stream, which is quite suited for this purpose. Within the app, one can specify the IP and Port of the client machine, which should receive the sensor datas. I think the app implements UDP for streaming data. I tried connecting my phone and linux pc to the same network and start streaming data from the phone to the pc. By using the tcpdump package on my linux machine, i could verify that data are sent to the linux machine on the specified port. So what's missing now is a convenient way to listen to the port and extract the sensor datas each time they appear at the port. Does anyone know how one can write a ROS node listening to the port, extract the streamed data and republish them on new topics in the ROS network for other nodes to listen to?

Any help is appreciated.